fish
   Anabantiformes
   Anguilliformes
   Atheriniformes
   Characiformes
     Alestoidea
     Anostomoidea
     Characoidea
       Acestrorhynchidae
       Bryconidae
       Chalceidae
       Characidae
       Crenuchidae
       Ctenoluciidae
       Gasteropelecidae
       Hepsetidae
       Iguanodectidae
       Lebiasinidae
       Parodontidae
         Apareiodon
         Parodon
           alfonsoi
           apolinari
           atratoensis
           bifasciatus
           buckleyi
           caliensis
           carrikeri
           guyanensis
           hilarii
           magdalenensis
           moreirai
           nasus
           orinocensis
           pongoensis
           suborbitalis
         Saccodon
       Triportheidae
     Citharinoidei
     Curimatoidea
     Erythrinoidea
   Cichlidae
   Cypriniformes
   Cyprinodontiformes
   Gobiiformes
   Perciformes
   Siluriformes
   Synbranchiformes
   more
inverts
plants
misc